DELPHI AREA Forum

Hello,
I downloaded recent version of your WaveAudio package but the Data property of TWave is missed!

I suppose that it was your deliberate decision to remove it, but it breaks my code written years ago.



What I can write instead of the following where wv1 and wv2 are TWave?

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Move(wv2.Data^, w1^, wv2.DataSize);

Best,
stfine

In the older versions of WaveAudio, TWave was a TMemoryStream but now TWave is a TWaveStreamAdapter.

TWaveStreamAdapter is not a stream but provides a wrapper around any kind of stream to access or modify the wave data. In this case, TWave is a special kind of TWaveStreamAdapter that manipulates a TMemoryStream in behind.

Here is a way to have your old code:

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Move(Pointer(DWORD(TMemoryStream(Wave.Stream).Memory) + Wave.DataOffset)^, w1^, Wave.DataSize);


but it's recommended to use the following code instead:

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if Wave.BeginRead then
begin
  Wave.Read(w1^, Wave.DataSize);
  Wave.EndRead;
end;


nice, thanks

I forgot to mention that if you want to make a copy of a TWave (or genrally TWaveStreamAdapter) instance, you can simply use the Assign method of the target or the AssignTo method of the source.

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SrcWave.AssignTo(DstWave);

OR

DstWave.Assign(SrcWave);